US3784948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated circuit package of unified structure with variable resistor
Assignee: Bunker Ramo Corp
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Filing: 1971-12-23
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Granted: 1974-01-08
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Expires: 1991-12-23
Abstract
Abstract An integrated circuit-type component including a ceramic substrate having conductive and resistive paths, including both variable and fixed resistances; a pair of terminal strips each having a plurality of terminal elements, secured to the substrate on opposite sides thereof by clinching and soldering in electrical engagement with respective ones of the paths and forming a unitary, rigid and mechanically strong assembly; the terminal strips forming in-line pin elements; flat bonding elements on opposite surfaces of the substrate enclosing the clinching elements; a case having a hollow interior; and a lead screw and carrier in the case, the lead screw being exposed to the exterior for adjusting manipulations, the carrier being moved by the lead screw and having a contact member engaging the variable resistance paths, to form a potentiometer.
Inventors
- 👤 S Johnston
- 👤 J Lyons
- 👤 H Riedmayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:44
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/38; H01C10/40; H01C10/42; Y; Y10; Y10S; Y10S257/00; Y10S257/916
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
105 words
An integrated resistance circuit package, comprising a rigid substrate, a plurality of electrical resistance paths deposited on the substrate and having terminal portions at edges of the substrate, and terminal contact members secured to the substrate at said edges, each terminal contact member having a pair of elements on opposite surfaces of the substrate in gripping engagement therewith, and in electrical engagement with the terminal portions of the paths, wherein the improvement comprises a pair of bonding members having outline shapes substantially congruent with the substrate and bonded to the upper and under surfaces thereof and embedding therebetween said gripping elements of the contact members.
Claim 2
Dependent Claim
105 words
An integrated resistance circuit package, comprising a rigid substrate, a plurality of electrical resistance paths deposited on the substrate and having terminal portions at edges of the substrate, and terminal contact members secured to the substrate at said edges, each terminal contact member having a pair of elements on opposite surfaces of the substrate in gripping engagement therewith, and in electrical engagement with the terminal portions of the paths, wherein the improvement comprises a pair of bonding members having outline shapes substantially congruent with the substrate and bonded to the upper and under surfaces thereof and embedding therebetween said gripping elements of the contact members.
Claim 3
Dependent Claim
54 words
A package according to claim 1 in which the electrical paths on the upper surface of the substrate include a pair of parallel paths in the central area of said substrate, and the upper bonding member has a central aperture exposing said parallel paths for accommodating access of a contact member engaging those paths.
Claim 4
Dependent Claim
57 words
A package according to claim 2 and including a case bonded to the upper bonding member and having an interior cavity substantially in register with the aperture in the upper bonding member, a contact member in said cavity in engagement with said parallel paths, and means mounting said contact member for adjustably moving it along those paths.
Claim 5
Dependent Claim
176 words
A resistance circuit package of unified structure comprising: a substrate; a plurality of electrical paths deposited on the substrate, said paths including a pair of parallel paths, one of a conductive material and the other of a resistive material, said paths being adapted to provide a variable resistance, and at least one additional path providing a fixed resistance; contact elements secured to said paths and adapted for connection to external circuit means; a case secured to the substrate, the case having an interior cavity; means for adjustably varying the resistance across contact elements secured to said pair of parallel paths, said means including an element disposed in said cavity and movable therein along the parallel paths; and means, including said case, protectively embedding substantially all of said paths except said parallel paths, said embedding means including a pair of bonding members having outline shapes substantially congruent with the substrate and bonded to the upper and under surfaces thereof, the upper bonding member having an aperture aligned with said cavity to expose said pair of parallel paths.
Claim 6
Dependent Claim
176 words
A resistance circuit package of unified structure comprising: a substrate; a plurality of electrical paths deposited on the substrate, said paths including a pair of parallel paths, one of a conductive material and the other of a resistive material, said paths being adapted to provide a variable resistance, and at least one additional path providing a fixed resistance; contact elements secured to said paths and adapted for connection to external circuit means; a case secured to the substrate, the case having an interior cavity; means for adjustably varying the resistance across contact elements secured to said pair of parallel paths, said means including an element disposed in said cavity and movable therein along the parallel paths; and means, including said case, protectively embedding substantially all of said paths except said parallel paths, said embedding means including a pair of bonding members having outline shapes substantially congruent with the substrate and bonded to the upper and under surfaces thereof, the upper bonding member having an aperture aligned with said cavity to expose said pair of parallel paths.
Claim 7
Dependent Claim
46 words
A package according to claim 4 wherein at least some of said paths are of resistive material; and wherein the resistive material of all of said paths have like temperature coefficients of resistance, whereby changes in environmental conditions will not alter resistance ratios of the paths.
Claim 8
Dependent Claim
167 words
An integrated circuit package, comprising: A rigid substrate; electrical paths deposited on the substrate and having terminal portions terminating at the edges of the substrate; and terminal contact members secured to the edges of said substrate which have terminal portions to form an integral part of said package, each of said members having a pair of substantially flat elements which are bent at an angle substantially parallel to the plane of the substrate, said elements being positioned on opposite surfaces of the substrate and being forced toward each other, gripping the substrate therebetween, in securing the member to the substrate, at least one of said elements being in electrical engagement with a terminal portion, each of siad terminal contact members also having an extended element for electrical contact engagement with external circuit means, and including a pair of bonding members having outline shapes substantially congruent with the substratE and bonded to the upper and under surfaces thereof and embedding therebetween said gripping elements of the contact members.
Claim 9
Dependent Claim
167 words
An integrated circuit package, comprising: A rigid substrate; electrical paths deposited on the substrate and having terminal portions terminating at the edges of the substrate; and terminal contact members secured to the edges of said substrate which have terminal portions to form an integral part of said package, each of said members having a pair of substantially flat elements which are bent at an angle substantially parallel to the plane of the substrate, said elements being positioned on opposite surfaces of the substrate and being forced toward each other, gripping the substrate therebetween, in securing the member to the substrate, at least one of said elements being in electrical engagement with a terminal portion, each of siad terminal contact members also having an extended element for electrical contact engagement with external circuit means, and including a pair of bonding members having outline shapes substantially congruent with the substratE and bonded to the upper and under surfaces thereof and embedding therebetween said gripping elements of the contact members.
Claim 10
Dependent Claim
52 words
A package according to claim 6 in which the electrical paths on the upper surface of the substrate include a pair of variable resistance parallel paths at substantially the center thereof, and the upper bonding member has a central aperture exposing said parallel paths for accommodating a contact member engaging those paths.
Claim 11
Dependent Claim
57 words
A package according to claim 7 and including a case bonded to the upper bonding member and having an interior cavity substantially in register with the aperture in the upper bonding member, a contact member in said cavity in engagement with said parallel paths, and means mounting said contact member for adjustably moving it along those paths.
Claim 12
Dependent Claim
39 words
A package according to claim 8 in which the means for adjustably moving the contact member includes a lead screw generally within the cavity and extending longitudinally thereof and having an end exposed to the exterior for manual control.
Claim 13
Dependent Claim
41 words
A package according to claim 9 wherein the contact member engaging said parallel paths includes a carrier mounted on the lead screw and acting in reaction against the substrate for biasing the lead screw upwardly and maintaining it in upper position.
Claim 14
Dependent Claim
38 words
A package according to claim 9 in which the case has an end aperture of a diameter similar to that of the lead screw and receiving the lead screw and forming bearing support for the outer end thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |